Contents

module Acouchi
  class Which
    def self.which? command
      exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
      ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
        exts.each { |ext|
          exe = "#{path}/#{command}#{ext}"
          return exe if File.executable? exe
        }
      end
      return nil
    end

    def self.find_executable *aliases
      if executable = aliases.find {|a| which? a}
        executable
      else
        raise %{Couldn't find any matches for the aliases "#{aliases.join(", ")}"}
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
acouchi-0.0.4	lib/acouchi/which.rb
acouchi-0.0.3	lib/acouchi/which.rb